diff --git a/ChangeLog.md b/ChangeLog.md
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -1,3 +1,9 @@
+# 0.5.2.1
+
+## Added features
+
+ * Aeson 2.0 support
+
 # 0.5.2.0
 
 ## Added features
diff --git a/beam-postgres.cabal b/beam-postgres.cabal
--- a/beam-postgres.cabal
+++ b/beam-postgres.cabal
@@ -1,5 +1,5 @@
 name:                 beam-postgres
-version:              0.5.2.0
+version:              0.5.2.1
 synopsis:             Connection layer between beam and postgres
 description:          Beam driver for <https://www.postgresql.org/ PostgreSQL>, an advanced open-source RDBMS
 homepage:             https://haskell-beam.github.io/beam/user-guide/backends/beam-postgres
@@ -50,7 +50,7 @@
                       monad-control        >=1.0  && <1.1,
                       mtl                  >=2.1  && <2.3,
                       conduit              >=1.2  && <1.4,
-                      aeson                >=0.11 && <1.6,
+                      aeson                >=0.11 && <2.1,
                       uuid-types           >=1.0  && <1.1,
                       case-insensitive     >=1.2  && <1.3,
                       scientific           >=0.3  && <0.4,